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Effects of the completely unknown symmetry (isovector) potential of the \D on the total and differential \rpi in heavy-ion collisions at beam energies from 100 to 1000 MeV/A are explored within an isospin-dependent transport model IBUU. The…

Nuclear Theory · Physics 2015-09-22 Bao-An Li

We study decuplet baryons from meson-baryon interactions, in particular, $\Delta$ and $\Omega$ baryons from P-wave $I=3/2$ $N\pi$ and $I=0$ $\Xi\bar{K}$ interactions, respectively. The interaction potentials are calculated in the HAL QCD…

High Energy Physics - Lattice · Physics 2021-12-01 Kotaro Murakami , Yutaro Akahoshi , Sinya Aoki , Kenji Sasaki

Within the framework of the relativistic Vlasov-Uehling-Uhlenbeck transport model based on the relativistic nonlinear NL$\rho$ interaction, we study pion in-medium effects on the $\pi^-/\pi^+$ ratio in Au+Au collisions at the energy of…

Nuclear Theory · Physics 2017-06-14 Zhen Zhang , Che Ming Ko

The energy-, density-, and isospin-dependent $\Delta$-formation cross section $\sigma_{N\pi \rightarrow \Delta}^*$ and $\Delta$-decay width are calculated based on the relativistic BUU approach in which the effective mass splitting of…

Nuclear Theory · Physics 2021-08-09 Qingfeng Li , Zhuxia Li

Background: The nuclear interaction potential and hence the fusion barrier formed between the interacting nuclei are the keys to understanding the complex fusion process dynamics. Purpose: This work intends to explore the fusion barrier…

Nuclear Theory · Physics 2022-05-31 Shilpa Rana , Mrutunjaya Bhuyan , Raj Kumar

We present the first results of a comprehensive microscopic approach to describe nucleus-nucleus elastic collisions by means of an optical potential derived at first order in multiple-scattering theory and computed by folding the projectile…

Nuclear Theory · Physics 2026-01-07 Matteo Vorabbi , Michael Gennari , Paolo Finelli , Carlotta Giusti , Petr Navrátil

The properties of nucleon-nucleon scattering inside dense nuclear matter are investigated. We use the relativistic Brueckner-Hartree-Fock model to determine on-shell and half off-shell in-medium transition amplitudes and cross sections. At…

Nuclear Theory · Physics 2009-11-07 C. Fuchs , Amand Faessler , M. El-Shabshiry

We compute the pion inclusive momentum distribution in a heavy-ion collision, assuming thermal equilibrium and accounting for boundary effects at the time of decoupling. We calculate the chemical potential corresponding to an average pion…

High Energy Physics - Phenomenology · Physics 2009-10-30 Alejandro Ayala , Augusto Smerzi

We present the results of our calculation which has been performed to study the nuclear effects in the quasielastic, inelastic and deep inelastic scattering of neutrinos(antineutrinos) from nuclear targets. These calculations are done in…

Nuclear Theory · Physics 2008-08-12 M. Sajjad Athar , S. Chauhan , S. K. Singh , M. J. Vicente Vacas

Isobaric single charge-exchange reactions, changing nuclear charges by one unit but leaving the mass partitions unaffected, have been for the first time investigated by peripheral collisions of $^{112}$Sn ions accelerated up to 1\textit{A}…

The cross-sections of the $\gamma p-\gamma' N'$, $\gamma p-\pi' N'$ and $\gamma p-\gamma'\pi' N'$ reactions are calculated in the framework of the field-theoretical one-particle ($\pi,\omega,\rho$-mesons, nucleon and $\Delta$-resonance)…

Nuclear Theory · Physics 2007-05-23 A. I. Machavariani , Amand Faessler

We disuss exclusive electromagnetic production of two neutral $\rho^0$~mesons and show the predictions for the $AA \to AA \rho^0 \rho^0$ reactions for gold-gold collisions at the energy of $\sqrt{s}$ = 200 GeV (RHIC) and for lead-lead…

Nuclear Theory · Physics 2011-03-02 Mariola Klusek-Gawenda , Antoni Szczurek

Intermediate energy heavy ion collisions open the unique possibility to explore the Equation of State ($EOS$) of nuclear matter far from saturation, in particular the density dependence of the symmetry energy. Within a relativistic…

Nuclear Theory · Physics 2009-11-07 V. Greco , V. Baran , M. Colonna , M. Di Toro , T. Gaitanos , H. H. Wolter

The cross section for massive fermion production in two-photon collisions was examined at next-to-leading order in QCD/QED for general photon helicity. The delta function (virtual+soft) part of the differential cross section was…

High Energy Physics - Phenomenology · Physics 2007-05-23 B. Kamal , Z. Merebashvili

The finite nuclear thickness affects the energy density $\epsilon(t)$ and conserved-charge densities such as the net-baryon density $n_B(t)$ produced in heavy ion collisions. While the effect is small at high collision energies where the…

Nuclear Theory · Physics 2022-08-16 Zi-Wei Lin , Todd Mendenhall

New edition of the review [EPJA 48, (2012) 152]. The increase in computational power has naturally led to new applications of mean-field (and beyond) methods. This is particularly the case of quasi-fission reactions. Since the first…

Nuclear Theory · Physics 2025-09-22 Cédric Simenel

The space-time propagation of heavy quarks in ultra-relativistic heavy ion collisions is studied within the partonic transport model Boltzmann Approach of MultiParton Scatterings (BAMPS). In this model heavy quarks interact with the…

High Energy Physics - Phenomenology · Physics 2011-08-25 Jan Uphoff , Oliver Fochler , Zhe Xu , Carsten Greiner

Nuclear modification factor predicts whether a medium is formed in a collision system or not. One may verify, if scaling of momentum (transverse) distribution from heavy-ion systems with incoherent superposition of number of binary…

High Energy Physics - Phenomenology · Physics 2021-10-11 K. Dey , A. N. Mishra , S. K. Tripathy

High-p_T pion and kaon production is studied in relativistic proton-proton, proton-nucleus, and nucleus-nucleus collisions in a wide energy range. Cross sections are calculated based on perturbative QCD, augmented by a phenomenological…

High Energy Physics - Phenomenology · Physics 2008-11-26 Y. Zhang , G. Fai , G. Papp , G. G. Barnafoldi , P. Levai

Highly charged relativistic heavy ions have high cross-sections for two-photon interactions. The photon flux is high enough that two-photon interactions may be accompanied by additional photonuclear interactions. Except for the shared…

Nuclear Experiment · Physics 2009-11-06 Anthony J. Baltz , Yuri Gorbunov , Spencer R. Klein , Joakim Nystrand
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